Microbiology with Diseases by Body System
4th Edition Bauman / All Chapters 1-25 / Full
Complete 2025
_____________________________________________________________________________________
1) Pleomorphic bacteria
A) have a slightly curved rod shape.
B) are flexible.
C) reproduce by snapping division.
D) are roughly spherical.
E) vary in size and shape.
vary in size and shape.
2) Cocci which divide along alternating planes may stick together to form
A) tetrads.
B) palisades.
C) streptococci.
D) sarcinae.
E) staphylococci.
tetrads.
3) The arrangement represented in the figure is typical of which of the following genera of bacteria?
A) Bacillus
B) Corynebacterium
C) Escherichia
D) Actinomyces
E) Streptococcus
Corynebacterium
4) What bacterial structure is responsible for separating the daughter DNA molecules after
replication?
A) cross wall
B) cytoplasmic membrane
C) fimbria
D) spindle
E) cytoskeleton
cytoplasmic membrane
5) When conditions become inhospitable, members of the genus Clostridium produce an internal
durable, dormant form by the process of
A) binary fission.
B) sporulation.
C) conjugation.
,D) budding.
E) vegetation.
sporulation
6) Bergey's Manual of Systematic Bacteriology contains
A) classification schemes for prokaryotes.
B) treatments for bacterial diseases.
C) recipes for bacterial growth media.
D) genetic sequences of prokaryotes.
E) rules for naming new bacterial species.
classification schemes for prokaryotes
7) Which of the following characteristics distinguish(es) the archaea from the bacteria?
A) cell wall composition
B) 16S ribosomal RNA (rRNA) sequences
C) the deoxyribonucleotides in the DNA
D) cytoplasmic membrane lipids
E) cell wall composition, cytoplasmic membrane lipids, and 16S rRNA sequences
cell wall composition, cytoplasmic membrane lipids, and 16S rRNA sequences
8) The archaea known as halophiles
A) require temperatures above 45∘C to survive.
B) require salt concentrations of 9% or greater to survive.
C) are members of the phylum Euryarchaeota.
D) are members of the Euryarchaeota and require temperatures above 45∘C.
E) are members of the Euryarchaeota and require salt concentrations above 9%.
are members of the Euryarchaeota and require salt concentrations above 9%.
9) Some obligately anaerobic ________ are used in sewage treatment, and produce a fuel that can be
used to produce electricity.
A) thermophiles
B) halophiles
C) cyanobacteria
D) methanogens
E) hyperthermophiles
methanogens
10) Which of the following types of microbes might be found in a boiling hot spring?
A) hyperthermophiles
B) phototrophic bacteria
C) methanogens
D) actinomycetes
E) halophiles
,hyperthermophiles
11) The ________ are autotrophs which live in anaerobic environments thought to be similar to
conditions on the early Earth, and may have diverged from other bacteria far back in time.
A) deeply branching bacteria
B) cyanobacteria
C) mycoplasmas
D) thermophiles
E) proteobacteria
deeply branching bacteria
12) Many cyanobacteria carry out both oxygenic photosynthesis and nitrogen fixation, but oxygen
inhibits nitrogen fixation. How do these cyanobacteria manage both processes?
A) They produce cells called akinetes for photosynthesis.
B) They trap the oxygen in special cells called heterocysts.
C) Nitrogen fixation is sequestered in special cells called heterocysts.
D) They have special membranous structures like chloroplasts to separate the processes within the
cell.
E) The processes are seasonal, photosynthesis occurs in summer and nitrogen fixation takes place in
winter.
Nitrogen fixation is sequestered in special cells called heterocysts.
13) Phototrophic bacteria that use chlorophyll a are in the phylum
A) Chlorobi.
B) Chloroflexi.
C) Cyanobacteria.
D) Proteobacteria.
E) Actinobacteria.
Cyanobacteria.
14) Bacteria described as "Low G + C"
A) are Gram-negative Cyanobacteria.
B) include filamentous Actinomycetes.
C) have DNA composed of more than 50% AT pairs.
D) have unmethylated GC DNA.
E) Gram stain pink and are cocci.
have DNA composed of more than 50% AT pairs.
15) The Gram-positive obligate anaerobe ________ causes a severe diarrhea.
A) Bacillus anthracis
B) Clostridium botulinum
C) Clostridium perfringens
D) Clostridium difficile
E) Selenomonas
, Clostridium difficile
16) Mycoplasmas are pleomorphic because they
A) have no cell walls.
B) are low G + C content Gram-positive bacteria.
C) exhibit snapping division.
D) have sterols in their cytoplasmic membranes.
E) produce endospores.
have no cell walls.
Antoni van Leeuwenhoek was the first person in history to
A) use a magnifying glass.
B) develop a taxonomic system.
C) view microorganisms and record these observations.
D) disprove spontaneous generation.
E) use the germ theory of disease.
view microorganisms and record these observations.
Which of the following microbes are likely to be the swiftly moving "animalcules" observed by
Leeuwenhoek in pond water?
A) fungi
B) protozoa
C) algae
D) viruses
E) fungi and algae
protozoa
Which of the following statements about fungi is INCORRECT?
A) fungi are eukaryotes.
B) molds are multicellular.
C) fungi have a cell wall.
D) fungi are photosynthetic.
E) yeasts are unicellular.
fungi are photosynthetic.
Which of the following is an accurate description of viruses?
A) they are visible with a light microscope.
B) they are the smallest known cells.
C) they are composed of protein only.
D) they are typically about the size of prokaryotic cells.
E) they are acellular obligatory parasites.
4th Edition Bauman / All Chapters 1-25 / Full
Complete 2025
_____________________________________________________________________________________
1) Pleomorphic bacteria
A) have a slightly curved rod shape.
B) are flexible.
C) reproduce by snapping division.
D) are roughly spherical.
E) vary in size and shape.
vary in size and shape.
2) Cocci which divide along alternating planes may stick together to form
A) tetrads.
B) palisades.
C) streptococci.
D) sarcinae.
E) staphylococci.
tetrads.
3) The arrangement represented in the figure is typical of which of the following genera of bacteria?
A) Bacillus
B) Corynebacterium
C) Escherichia
D) Actinomyces
E) Streptococcus
Corynebacterium
4) What bacterial structure is responsible for separating the daughter DNA molecules after
replication?
A) cross wall
B) cytoplasmic membrane
C) fimbria
D) spindle
E) cytoskeleton
cytoplasmic membrane
5) When conditions become inhospitable, members of the genus Clostridium produce an internal
durable, dormant form by the process of
A) binary fission.
B) sporulation.
C) conjugation.
,D) budding.
E) vegetation.
sporulation
6) Bergey's Manual of Systematic Bacteriology contains
A) classification schemes for prokaryotes.
B) treatments for bacterial diseases.
C) recipes for bacterial growth media.
D) genetic sequences of prokaryotes.
E) rules for naming new bacterial species.
classification schemes for prokaryotes
7) Which of the following characteristics distinguish(es) the archaea from the bacteria?
A) cell wall composition
B) 16S ribosomal RNA (rRNA) sequences
C) the deoxyribonucleotides in the DNA
D) cytoplasmic membrane lipids
E) cell wall composition, cytoplasmic membrane lipids, and 16S rRNA sequences
cell wall composition, cytoplasmic membrane lipids, and 16S rRNA sequences
8) The archaea known as halophiles
A) require temperatures above 45∘C to survive.
B) require salt concentrations of 9% or greater to survive.
C) are members of the phylum Euryarchaeota.
D) are members of the Euryarchaeota and require temperatures above 45∘C.
E) are members of the Euryarchaeota and require salt concentrations above 9%.
are members of the Euryarchaeota and require salt concentrations above 9%.
9) Some obligately anaerobic ________ are used in sewage treatment, and produce a fuel that can be
used to produce electricity.
A) thermophiles
B) halophiles
C) cyanobacteria
D) methanogens
E) hyperthermophiles
methanogens
10) Which of the following types of microbes might be found in a boiling hot spring?
A) hyperthermophiles
B) phototrophic bacteria
C) methanogens
D) actinomycetes
E) halophiles
,hyperthermophiles
11) The ________ are autotrophs which live in anaerobic environments thought to be similar to
conditions on the early Earth, and may have diverged from other bacteria far back in time.
A) deeply branching bacteria
B) cyanobacteria
C) mycoplasmas
D) thermophiles
E) proteobacteria
deeply branching bacteria
12) Many cyanobacteria carry out both oxygenic photosynthesis and nitrogen fixation, but oxygen
inhibits nitrogen fixation. How do these cyanobacteria manage both processes?
A) They produce cells called akinetes for photosynthesis.
B) They trap the oxygen in special cells called heterocysts.
C) Nitrogen fixation is sequestered in special cells called heterocysts.
D) They have special membranous structures like chloroplasts to separate the processes within the
cell.
E) The processes are seasonal, photosynthesis occurs in summer and nitrogen fixation takes place in
winter.
Nitrogen fixation is sequestered in special cells called heterocysts.
13) Phototrophic bacteria that use chlorophyll a are in the phylum
A) Chlorobi.
B) Chloroflexi.
C) Cyanobacteria.
D) Proteobacteria.
E) Actinobacteria.
Cyanobacteria.
14) Bacteria described as "Low G + C"
A) are Gram-negative Cyanobacteria.
B) include filamentous Actinomycetes.
C) have DNA composed of more than 50% AT pairs.
D) have unmethylated GC DNA.
E) Gram stain pink and are cocci.
have DNA composed of more than 50% AT pairs.
15) The Gram-positive obligate anaerobe ________ causes a severe diarrhea.
A) Bacillus anthracis
B) Clostridium botulinum
C) Clostridium perfringens
D) Clostridium difficile
E) Selenomonas
, Clostridium difficile
16) Mycoplasmas are pleomorphic because they
A) have no cell walls.
B) are low G + C content Gram-positive bacteria.
C) exhibit snapping division.
D) have sterols in their cytoplasmic membranes.
E) produce endospores.
have no cell walls.
Antoni van Leeuwenhoek was the first person in history to
A) use a magnifying glass.
B) develop a taxonomic system.
C) view microorganisms and record these observations.
D) disprove spontaneous generation.
E) use the germ theory of disease.
view microorganisms and record these observations.
Which of the following microbes are likely to be the swiftly moving "animalcules" observed by
Leeuwenhoek in pond water?
A) fungi
B) protozoa
C) algae
D) viruses
E) fungi and algae
protozoa
Which of the following statements about fungi is INCORRECT?
A) fungi are eukaryotes.
B) molds are multicellular.
C) fungi have a cell wall.
D) fungi are photosynthetic.
E) yeasts are unicellular.
fungi are photosynthetic.
Which of the following is an accurate description of viruses?
A) they are visible with a light microscope.
B) they are the smallest known cells.
C) they are composed of protein only.
D) they are typically about the size of prokaryotic cells.
E) they are acellular obligatory parasites.
